/*
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package demo.collection;

/**
 *
 * @author VANDH
 */
public class Bird extends Animal {
    public Bird() {
        soChan = 2;
    }

    @Override
    public boolean bietBay() {
        return true;

    }

    @Override
    public boolean bietBoi() {
        return false;
    }

    @Override
    public boolean bietKeu() {
        return true;
    }

    public void bay() {
        System.out.println("Bay bay...");
    }

    public void keu() {
        System.out.println("Chip chip...");
    }
}
